In the Congo basin, minerals used in cellphones and other electronics are often mined by illegal, small-scale miners who end up hurting wildlife for food and driving them away from their habitat. You can do something to change this.

Sharon George
and Jamie Pringle –
Each year more than 300 tonnes of processed gold are dumped in landfills. What if we could mine landfills for gold and other precious metals, ask researchers from Keele University.

A world powered by renewable energy will prize a very different set of resources than we do today. Which countries hold the key to unlocking wind and solar energy, and how will this shake up the world order? University of Swansea's Andrew Barron discusses.